doomcaca

$ SDL_VIDEODRIVER=caca chocolate-doom -iwad ~/random/doom1.WAD


                         Chocolate Doom 3.0.0
Z_Init: Init zone memory allocation daemon.
zone memory: 0x7f5d23135010, 1000000 allocated for zone
Using /root/.local/share/chocolate-doom/ for configuration and saves
V_Init: allocate screens.
M_LoadDefaults: Load system defaults.
saving config in /root/.local/share/chocolate-doom/default.cfg
W_Init: Init WADfiles.
 adding /home/arch/random/doom1.WAD
===========================================================================
                            DOOM Shareware
===========================================================================
 Chocolate Doom is free software, covered by the GNU General Public
 License.  There is NO warranty; not even for MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE. You are welcome to change and distribute
 copies under certain conditions. See the source for more information.
===========================================================================
I_Init: Setting up machine state.
OPL_Init: No OPL detected using 'Linux' driver.
OPL_Init: Using driver 'SDL'.
NET_Init: Init network subsystem.
M_Init: Init miscellaneous info.
R_Init: Init DOOM refresh daemon - [...................]
P_Init: Init Playloop state.
S_Init: Setting up sound.
D_CheckNetGame: Checking network game status.
startskill 2  deathmatch: 0  startmap: 1  startepisode: 1
player 1 of 1 (1 nodes)
Emulating the behavior of the 'Doom 1.8' executable.
HU_Init: Setting up heads up display.
ST_Init: Init status bar.
Failed to initialize video: caca not available